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Qualitative description of factors involved in the retraction and lysis of dilute whole blood clots and in the aggregation and retraction of platelets
Fletcher B. Taylor Jr., Hans J. Müller-Eberhard
Fletcher B. Taylor Jr., Hans J. Müller-Eberhard
Published November 1, 1970
Citation Information: J Clin Invest. 1970;49(11):2068-2085. https://doi.org/10.1172/JCI106425.
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Research Article

Qualitative description of factors involved in the retraction and lysis of dilute whole blood clots and in the aggregation and retraction of platelets

Abstract

Dilute whole blood clots were prepared by addition of thrombin to blood diluted 1:10 in phosphate buffer. The pH of this buffer was 7.4 and the ionic strength was 0.084. Though the ionic strength was low, there was no hemolysis of red corpuscles due to the contribution to the osmotic gradient by plasma salts and proteins. In the standard assay the clot was formed by addition of thrombin at 4°C then incubated at 37°C. Retraction and lysis of these clots were inhibited by removal of platelets and by increasing concentrations of purified thrombin. Retraction and lysis were also inhibited by inactivation of any one of the following factors: γM globulin, complement components C4 and 3, and (in the case of lysis) plasminogen.

Authors

Fletcher B. Taylor Jr., Hans J. Müller-Eberhard

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